CFD-DEM Overview

Single Particle

Solid-fluid interaction

1D Compression

Segregating in a fluid saturated rotating drum

Sedimentation of a contstant Porosity Block

Granular Rayleigh-Taylor

Fluidised Bed

Metal powder conveying

Defined lead(s) and collaborator(s)

 @Vasileios Angelidakis

@Alejandro López García

@Bruno Chareyre

@Matteo Zerbi

@Thomas Scrase

@Martin Isoz

@Hamid Reza Norouzi

@David Schneider

Bahram Haddadi

Burak Bal

Konstantinos Missios

Eduard Puig Montella

 @Matteo Zerbi

@Vasileios Angelidakis

@Bruno Chareyre

@Alessandro Leonardi

@Rafael Rangel

@Hongyang Cheng

@Bruno Chareyre

@Vasileios Angelidakis  

 @Anthony Thornton

@David Schneider

@Thomas Scrase

@Hamid Reza Norouzi

Bahram Haddadi

Chandrabhan Singh

  @Anthony Thornton

@David Schneider

@Thomas Scrase

@Hamid Reza Norouzi

Bahram Haddadi

Chandrabhan Singh

  @Anthony Thornton

@David Schneider

@Thomas Scrase

@Hamid Reza Norouzi

Bahram Haddadi

Chandrabhan Singh

  @Anthony Thornton

@David Schneider

@Thomas Scrase

@Hamid Reza Norouzi

Bahram Haddadi

Chandrabhan Singh

@Bruno Chareyre

@Alejandro López García

@Lorenzo Pedrolli

Brief problem statement

 Sphere under gravitational deposition in fluid.

Cuboidal sample subjected to simple shear by imposing equal but opposite velocities on two opposing faces

 It starts with a dense packing of spheres in a cube, with isotropic stress P0, then at time T0 the boundary conditions become:

• top/bottom wall:

  total stress = P0+deltaP,
  fluid pressure = 0

• in the other directions: rigid/impervious walls (frictionless)

Deformation vs. time and internal fluid pressure are recorded.

 Two different size glass beads in a rotating drum filled with a viscous liquid

 The aim is redo the test case from Robinson as described in section 5. Simple this is porous block (on granular) materials falling in a container.

 The aim is redo the test case from Robinson as described in section 7. In Robinson et al. they would at a set of granular materials on a grid falling into a fluid. There apply a perturbation to the particles positions and look at the growth on this interface as function of the wave number of the perturbation. They argue you should expect this to be described by the Rayleigh-Taylor instability. They get difference which they report.

 Gas fluidised bed - two alternative scenarios

Pneumatic conveying of metallic powder inside a pipe

Detailed problem statement

 Analyse/output velocities, forces in particle, position and pressure profiles. Different fluid viscosities to be used.

Proposed geometry and CFD mesh can be found here

 cuboidal sample subjected to simple shear by imposing equal but opposite velocities on two opposing faces. The shear test is performed at constant volume, with the wall velocities controlled and set to the target value from the very beginning of the simulation. On the sheared faces, both the particle-induced and fluid-induced stresses will be measured once a steady-state condition is reached. The sheared walls can be modeled either as bumpy walls or as periodic boundaries

 http://dx.doi.org/10.1007/s11440-022-01735-x

 Granular Rayleigh-Taylor InstabilityPreview

See section 7

 Reproduce Case A of Figure 14 from Link et al. https://doi.org/10.1016/j.ces.2005.01.027, which includes the vertical mass-flux

Reproduce Figure 7 from Muller et al.

Benchmark case

https://journal.openfoam.com/index.php/ofj/article/view/91/120

Calculate metallic powder mass flowrate at the outlet

Validation vcase setup described in Pedrolli et al.

https://doi.org/10.1038/s41597-025-04515-w

Experiment/validation data provided

 There are analytical solutions for some aspects (e.g. Stokes' law at low Reynolds' number), other based on published experimental evidence.

 @Anthony Thornton and @Thomas Weinhart still have an experimental setup which could be used to create these data sets again.

 Sedimentation of a Constant Porosity BlockPreview

 Benchmark against Granular Rayleigh-Taylor InstabilityPreview

https://doi.org/10.1016/j.ces.2005.01.027,

Experimental work on similar case, different pipe geometry

https://doi.org/10.1038/s41597-025-04515-w

Members and codes participation

Timo (Mercury)

@Vasileios Angelidakis , @Alejandro López García , Eduard Puig Montella, @Bruno Chareyre OpenFOAM-YADE - pimpleFoam

Konstantinos Missios and @Vasileios Angelidakis OpenFOAM-YADE - interFoam

Defined timeline

 TBA

Single Particle

Solid-fluid interaction

1D Compression

Segregating Saturated Rotating Drum

Contstant Porosity Block

Granular Rayleigh-Taylor

Fluidised Bed

Pneumatic conveying of metallic powder

Mercury-PreCICE-OpenFOAM

Unde- resolved CFD-DEM

LIGGHTS-PreCICE-OpenFOAM

Under-resolved CFD-DEM

YADE-OpenFOAM

Under-resolved CFD-DEM

Moomph (Mercury-Oomph)

FEM-DEM

OpenFOAM DEM library

Under-resolved CFD-DEM

PhasicFlowPlus

Under-resolved CFD-DEM

Yade (DEM-PFV)

DEM–PFV coupling (Discrete Element Method – Pore-scale Finite Volume)